\begin{align*}
\hat{y} &= 5.95 + 0.46 \text{ year2013} - 0.06 \text{ play\_home} + \\
& 0.34 \text{ play\_hours\_2} + 0.73 \text{ play\_hours\_3} + 0.88 \text{ play\_hours\_4} + 1.27 \text{ play\_hours\_5} + \\
& 0.30 \text{ year2013} \times \text{play\_home} + \\
& 0.18 \text{ play\_home} \times \text{ play\_hours\_2} + 0.06 \text{ play\_home} \times \text{ play\_hours\_3} + \\
& 0.02 \text{ play\_home} \times \text{ play\_hours\_4} - 0.44 \text{ play\_home} \times \text{ play\_hours\_5}
\end{align*}
\begin{align*}
\hat{y} =& 5.95 + 0.46 \text{ year2013} - 0.06 (1) + \\
& 0.34 \text{ play\_hours\_2} + 0.73 \text{ play\_hours\_3} + 0.88 \text{ play\_hours\_4} + 1.27 \text{ play\_hours\_5} + \\
& 0.30 \text{ year2013} \times (1) + \\
& 0.18 (1) \times \text{ play\_hours\_2} + 0.06 (1) \times \text{ play\_hours\_3} + \\
& 0.02 (1) \times \text{ play\_hours\_4} - 0.44 (1) \times \text{ play\_hours\_5} \\
=& 5.89 + 0.76 \text{ year2013} + \\
& 0.52 \text{ play\_hours\_2} + 0.79 \text{ play\_hours\_3} + 0.90 \text{ play\_hours\_4} + 0.83 \text{ play\_hours\_5} \\
\end{align*}
\begin{align*}
\hat{y} =& 5.95 + 0.46 \text{ year2013} - 0.06 (0) + \\
& 0.34 \text{ play\_hours\_2} + 0.73 \text{ play\_hours\_3} + 0.88 \text{ play\_hours\_4} + 1.27 \text{ play\_hours\_5} + \\
& 0.30 \text{ year2013} \times (0) + \\
& 0.18 (0) \times \text{ play\_hours\_2} + 0.06 (0) \times \text{ play\_hours\_3} \\
& 0.02 (0) \times \text{ play\_hours\_4} - 0.44 (0) \times \text{ play\_hours\_5} \\
=& 5.95 + 0.46 \text{ year2013} + \\
& 0.34 \text{ play\_hours\_2} + 0.73 \text{ play\_hours\_3} + 0.88 \text{ play\_hours\_4} + 1.27 \text{ play\_hours\_5}
\end{align*}